Foundation Models

OpenAI’s GPT-5.6 family (Sol flagship, Terra balanced, Luna cost-efficient) for complex reasoning, coding, multimodal understanding, and agentic tool use. The gpt-5.6 API alias routes to Sol.

OpenAI’s GPT-6 Astra peak model (API id gpt-6-astra) for computer use, coding agents, professional artifacts, science, and cybersecurity-adjacent defender workflows. Staged launch 2026-09-03; GPT-5.6 Sol/Terra/Luna remain the volume and cost-routing family.

Anthropic’s Claude Opus 5 tier for complex agentic coding, enterprise work, long-context analysis, and careful instruction following. Claude Fable 5.1 sits above Opus for peak widely released capability.

Anthropic’s Claude Sonnet 5 tier — best combination of speed and intelligence for most production agents and coding, at lower cost than Opus.

Anthropic’s Claude Fable 5.1 — the most capable widely released Claude for long-horizon agents, deep reasoning, and demanding coding workflows. Mythos 5.1 is the same underlying model with relaxed cyber/life-sciences safeguards for trusted-access programs.

Anthropic’s fast, cost-efficient Claude tier for high-volume chat, classification, extraction, and sub-agent steps where latency and price matter more than peak reasoning.

Google’s current Pro-class Gemini for hard reasoning and native multimodal work. Prefer API id gemini-3.1-pro-preview; Gemini 3.5 Pro remains partner-testing. Legacy gemini-2.5-pro is scheduled for shutdown Oct 16, 2026.

DeepSeek’s MoE general model — strong open-weight performance on coding and knowledge tasks with competitive API pricing.

DeepSeek’s reasoning-focused model trained with reinforcement learning for multi-step math, science, and coding problem solving.

DeepSeek’s V4 generation — deepseek-v4-pro (V4-Pro-0813 GA) and deepseek-v4-flash (Flash-0731) with 1M context, thinking effort low/high/max, native Responses API, and strong agentic coding. Experimental multimodal API: deepseek-v4-flash-vision-exp (2026-08-21).

Moonshot’s Kimi K3 — 2.8T MoE (104B active) open-weight multimodal agentic model with 1M context, native vision, and strong long-horizon coding. Weights on Hugging Face under the Kimi K3 License.

Meta Superintelligence Labs’ Muse Spark 1.3 — closed multimodal reasoning model for agentic tasks, long-horizon coding, computer use, and 1M-context workflows via Muse Code and the Meta Model API. Succeeds Spark 1.2; max reasoning is still withheld for safety testing.

Meta Superintelligence Labs’ Muse Glimmer — Apache-2.0 ~30B dense multimodal agent model for on-device and single-GPU local agents. Sibling to closed Muse Spark; distinct from Llama 4.

Alibaba’s Qwen3 family spanning Qwen3.8-Max (2.4T MoE / 95B active; live cloud alias qwen3.8-max routes to the 0902 snapshot as of 2026-09-05), open Qwen3.8-27B (dense VLM, Apache-2.0), and Qwen3.8-Flash-Next (125B / 6B active multimodal MoE + 51B n-gram embeddings)—a Qwen4 architecture preview for cost-efficient agentic coding. Production Qwen3.8-Flash on QwenCloud adds 1M-default context and built-in tools atop the Flash-Next design.

Meta’s Llama 4 family — open-weight multimodal models designed for research and commercial use under Meta’s community license.

OpenAI’s GPT-5.6 family (Sol flagship, Terra balanced, Luna cost-efficient) for complex reasoning, coding, multimodal understanding, and agentic tool use. The gpt-5.6 API alias routes to Sol.

OpenAI’s GPT-6 Astra peak model (API id gpt-6-astra) for computer use, coding agents, professional artifacts, science, and cybersecurity-adjacent defender workflows. Staged launch 2026-09-03; GPT-5.6 Sol/Terra/Luna remain the volume and cost-routing family.

Anthropic’s Claude Opus 5 tier for complex agentic coding, enterprise work, long-context analysis, and careful instruction following. Claude Fable 5.1 sits above Opus for peak widely released capability.

Anthropic’s Claude Sonnet 5 tier — best combination of speed and intelligence for most production agents and coding, at lower cost than Opus.

Anthropic’s Claude Fable 5.1 — the most capable widely released Claude for long-horizon agents, deep reasoning, and demanding coding workflows. Mythos 5.1 is the same underlying model with relaxed cyber/life-sciences safeguards for trusted-access programs.

Anthropic’s fast, cost-efficient Claude tier for high-volume chat, classification, extraction, and sub-agent steps where latency and price matter more than peak reasoning.

Google’s current Pro-class Gemini for hard reasoning and native multimodal work. Prefer API id gemini-3.1-pro-preview; Gemini 3.5 Pro remains partner-testing. Legacy gemini-2.5-pro is scheduled for shutdown Oct 16, 2026.

Google’s Gemini 3.8 Flash workhorse — fast, token-efficient multimodal model for agentic workflows, coding, and high-throughput apps where latency and cost matter. Succeeds 3.7 Flash (GA Aug 2026); 3.7 remains supported for efficiency-first workloads.

Meta Superintelligence Labs’ Muse Spark 1.3 — closed multimodal reasoning model for agentic tasks, long-horizon coding, computer use, and 1M-context workflows via Muse Code and the Meta Model API. Succeeds Spark 1.2; max reasoning is still withheld for safety testing.

Mistral’s flagship large model for enterprise reasoning, multilingual chat, and function calling via La Plateforme and cloud partners.

xAI’s Grok 4.6 — frontier coding and long-running agentic model (API id grok-4.6) with 500K context, vision, and strong tool use. Available via the xAI API, Grok Build, Cursor, and partners such as OpenRouter.

Cohere’s Command R+ model optimized for retrieval-augmented generation, enterprise search, and multilingual business assistants.

DeepSeek’s MoE general model — strong open-weight performance on coding and knowledge tasks with competitive API pricing.

DeepSeek’s reasoning-focused model trained with reinforcement learning for multi-step math, science, and coding problem solving.

DeepSeek’s V4 generation — deepseek-v4-pro (V4-Pro-0813 GA) and deepseek-v4-flash (Flash-0731) with 1M context, thinking effort low/high/max, native Responses API, and strong agentic coding. Experimental multimodal API: deepseek-v4-flash-vision-exp (2026-08-21).

Moonshot’s Kimi K3 — 2.8T MoE (104B active) open-weight multimodal agentic model with 1M context, native vision, and strong long-horizon coding. Weights on Hugging Face under the Kimi K3 License.

Meta Superintelligence Labs’ Muse Glimmer — Apache-2.0 ~30B dense multimodal agent model for on-device and single-GPU local agents. Sibling to closed Muse Spark; distinct from Llama 4.

Alibaba’s Qwen3 family spanning Qwen3.8-Max (2.4T MoE / 95B active; live cloud alias qwen3.8-max routes to the 0902 snapshot as of 2026-09-05), open Qwen3.8-27B (dense VLM, Apache-2.0), and Qwen3.8-Flash-Next (125B / 6B active multimodal MoE + 51B n-gram embeddings)—a Qwen4 architecture preview for cost-efficient agentic coding. Production Qwen3.8-Flash on QwenCloud adds 1M-default context and built-in tools atop the Flash-Next design.

Meta’s Llama 4 family — open-weight multimodal models designed for research and commercial use under Meta’s community license.

Mistral’s sparse Mixture-of-Experts open models (e.g. Mixtral 8x7B / 8x22B) — efficient high-quality text generation for self-hosting.

Microsoft’s Phi family of small language models — high capability per parameter for on-device, edge, and cost-sensitive deployments.

OpenAI’s GPT-5.6 family (Sol flagship, Terra balanced, Luna cost-efficient) for complex reasoning, coding, multimodal understanding, and agentic tool use. The gpt-5.6 API alias routes to Sol.

OpenAI’s GPT-6 Astra peak model (API id gpt-6-astra) for computer use, coding agents, professional artifacts, science, and cybersecurity-adjacent defender workflows. Staged launch 2026-09-03; GPT-5.6 Sol/Terra/Luna remain the volume and cost-routing family.

Anthropic’s Claude Opus 5 tier for complex agentic coding, enterprise work, long-context analysis, and careful instruction following. Claude Fable 5.1 sits above Opus for peak widely released capability.

Anthropic’s Claude Sonnet 5 tier — best combination of speed and intelligence for most production agents and coding, at lower cost than Opus.

Anthropic’s Claude Fable 5.1 — the most capable widely released Claude for long-horizon agents, deep reasoning, and demanding coding workflows. Mythos 5.1 is the same underlying model with relaxed cyber/life-sciences safeguards for trusted-access programs.

Google’s current Pro-class Gemini for hard reasoning and native multimodal work. Prefer API id gemini-3.1-pro-preview; Gemini 3.5 Pro remains partner-testing. Legacy gemini-2.5-pro is scheduled for shutdown Oct 16, 2026.

DeepSeek’s MoE general model — strong open-weight performance on coding and knowledge tasks with competitive API pricing.

DeepSeek’s reasoning-focused model trained with reinforcement learning for multi-step math, science, and coding problem solving.

DeepSeek’s V4 generation — deepseek-v4-pro (V4-Pro-0813 GA) and deepseek-v4-flash (Flash-0731) with 1M context, thinking effort low/high/max, native Responses API, and strong agentic coding. Experimental multimodal API: deepseek-v4-flash-vision-exp (2026-08-21).

Moonshot’s Kimi K3 — 2.8T MoE (104B active) open-weight multimodal agentic model with 1M context, native vision, and strong long-horizon coding. Weights on Hugging Face under the Kimi K3 License.

Meta Superintelligence Labs’ Muse Spark 1.3 — closed multimodal reasoning model for agentic tasks, long-horizon coding, computer use, and 1M-context workflows via Muse Code and the Meta Model API. Succeeds Spark 1.2; max reasoning is still withheld for safety testing.

Meta Superintelligence Labs’ Muse Glimmer — Apache-2.0 ~30B dense multimodal agent model for on-device and single-GPU local agents. Sibling to closed Muse Spark; distinct from Llama 4.

Alibaba’s Qwen3 family spanning Qwen3.8-Max (2.4T MoE / 95B active; live cloud alias qwen3.8-max routes to the 0902 snapshot as of 2026-09-05), open Qwen3.8-27B (dense VLM, Apache-2.0), and Qwen3.8-Flash-Next (125B / 6B active multimodal MoE + 51B n-gram embeddings)—a Qwen4 architecture preview for cost-efficient agentic coding. Production Qwen3.8-Flash on QwenCloud adds 1M-default context and built-in tools atop the Flash-Next design.

Meta’s Llama 4 family — open-weight multimodal models designed for research and commercial use under Meta’s community license.

Mistral’s flagship large model for enterprise reasoning, multilingual chat, and function calling via La Plateforme and cloud partners.

xAI’s Grok 4.6 — frontier coding and long-running agentic model (API id grok-4.6) with 500K context, vision, and strong tool use. Available via the xAI API, Grok Build, Cursor, and partners such as OpenRouter.

Cohere’s Command R+ model optimized for retrieval-augmented generation, enterprise search, and multilingual business assistants.

Microsoft’s Phi family of small language models — high capability per parameter for on-device, edge, and cost-sensitive deployments.

OpenAI’s GPT-5.6 family (Sol flagship, Terra balanced, Luna cost-efficient) for complex reasoning, coding, multimodal understanding, and agentic tool use. The gpt-5.6 API alias routes to Sol.

OpenAI’s GPT-6 Astra peak model (API id gpt-6-astra) for computer use, coding agents, professional artifacts, science, and cybersecurity-adjacent defender workflows. Staged launch 2026-09-03; GPT-5.6 Sol/Terra/Luna remain the volume and cost-routing family.

Anthropic’s Claude Opus 5 tier for complex agentic coding, enterprise work, long-context analysis, and careful instruction following. Claude Fable 5.1 sits above Opus for peak widely released capability.

Anthropic’s Claude Sonnet 5 tier — best combination of speed and intelligence for most production agents and coding, at lower cost than Opus.

Anthropic’s Claude Fable 5.1 — the most capable widely released Claude for long-horizon agents, deep reasoning, and demanding coding workflows. Mythos 5.1 is the same underlying model with relaxed cyber/life-sciences safeguards for trusted-access programs.

Anthropic’s fast, cost-efficient Claude tier for high-volume chat, classification, extraction, and sub-agent steps where latency and price matter more than peak reasoning.

Google’s current Pro-class Gemini for hard reasoning and native multimodal work. Prefer API id gemini-3.1-pro-preview; Gemini 3.5 Pro remains partner-testing. Legacy gemini-2.5-pro is scheduled for shutdown Oct 16, 2026.

Google’s Gemini 3.8 Flash workhorse — fast, token-efficient multimodal model for agentic workflows, coding, and high-throughput apps where latency and cost matter. Succeeds 3.7 Flash (GA Aug 2026); 3.7 remains supported for efficiency-first workloads.

DeepSeek’s MoE general model — strong open-weight performance on coding and knowledge tasks with competitive API pricing.

DeepSeek’s reasoning-focused model trained with reinforcement learning for multi-step math, science, and coding problem solving.

DeepSeek’s V4 generation — deepseek-v4-pro (V4-Pro-0813 GA) and deepseek-v4-flash (Flash-0731) with 1M context, thinking effort low/high/max, native Responses API, and strong agentic coding. Experimental multimodal API: deepseek-v4-flash-vision-exp (2026-08-21).

Moonshot’s Kimi K3 — 2.8T MoE (104B active) open-weight multimodal agentic model with 1M context, native vision, and strong long-horizon coding. Weights on Hugging Face under the Kimi K3 License.

Meta Superintelligence Labs’ Muse Spark 1.3 — closed multimodal reasoning model for agentic tasks, long-horizon coding, computer use, and 1M-context workflows via Muse Code and the Meta Model API. Succeeds Spark 1.2; max reasoning is still withheld for safety testing.

Meta Superintelligence Labs’ Muse Glimmer — Apache-2.0 ~30B dense multimodal agent model for on-device and single-GPU local agents. Sibling to closed Muse Spark; distinct from Llama 4.

Alibaba’s Qwen3 family spanning Qwen3.8-Max (2.4T MoE / 95B active; live cloud alias qwen3.8-max routes to the 0902 snapshot as of 2026-09-05), open Qwen3.8-27B (dense VLM, Apache-2.0), and Qwen3.8-Flash-Next (125B / 6B active multimodal MoE + 51B n-gram embeddings)—a Qwen4 architecture preview for cost-efficient agentic coding. Production Qwen3.8-Flash on QwenCloud adds 1M-default context and built-in tools atop the Flash-Next design.

Meta’s Llama 4 family — open-weight multimodal models designed for research and commercial use under Meta’s community license.

Mistral’s flagship large model for enterprise reasoning, multilingual chat, and function calling via La Plateforme and cloud partners.

Mistral’s sparse Mixture-of-Experts open models (e.g. Mixtral 8x7B / 8x22B) — efficient high-quality text generation for self-hosting.

xAI’s Grok 4.6 — frontier coding and long-running agentic model (API id grok-4.6) with 500K context, vision, and strong tool use. Available via the xAI API, Grok Build, Cursor, and partners such as OpenRouter.

Microsoft’s Phi family of small language models — high capability per parameter for on-device, edge, and cost-sensitive deployments.

OpenAI’s GPT-5.6 family (Sol flagship, Terra balanced, Luna cost-efficient) for complex reasoning, coding, multimodal understanding, and agentic tool use. The gpt-5.6 API alias routes to Sol.

OpenAI’s GPT-6 Astra peak model (API id gpt-6-astra) for computer use, coding agents, professional artifacts, science, and cybersecurity-adjacent defender workflows. Staged launch 2026-09-03; GPT-5.6 Sol/Terra/Luna remain the volume and cost-routing family.

Anthropic’s Claude Opus 5 tier for complex agentic coding, enterprise work, long-context analysis, and careful instruction following. Claude Fable 5.1 sits above Opus for peak widely released capability.

Anthropic’s Claude Sonnet 5 tier — best combination of speed and intelligence for most production agents and coding, at lower cost than Opus.

Anthropic’s Claude Fable 5.1 — the most capable widely released Claude for long-horizon agents, deep reasoning, and demanding coding workflows. Mythos 5.1 is the same underlying model with relaxed cyber/life-sciences safeguards for trusted-access programs.

Anthropic’s fast, cost-efficient Claude tier for high-volume chat, classification, extraction, and sub-agent steps where latency and price matter more than peak reasoning.

Google’s current Pro-class Gemini for hard reasoning and native multimodal work. Prefer API id gemini-3.1-pro-preview; Gemini 3.5 Pro remains partner-testing. Legacy gemini-2.5-pro is scheduled for shutdown Oct 16, 2026.

Google’s Gemini 3.8 Flash workhorse — fast, token-efficient multimodal model for agentic workflows, coding, and high-throughput apps where latency and cost matter. Succeeds 3.7 Flash (GA Aug 2026); 3.7 remains supported for efficiency-first workloads.

DeepSeek’s V4 generation — deepseek-v4-pro (V4-Pro-0813 GA) and deepseek-v4-flash (Flash-0731) with 1M context, thinking effort low/high/max, native Responses API, and strong agentic coding. Experimental multimodal API: deepseek-v4-flash-vision-exp (2026-08-21).

Moonshot’s Kimi K3 — 2.8T MoE (104B active) open-weight multimodal agentic model with 1M context, native vision, and strong long-horizon coding. Weights on Hugging Face under the Kimi K3 License.

Meta Superintelligence Labs’ Muse Spark 1.3 — closed multimodal reasoning model for agentic tasks, long-horizon coding, computer use, and 1M-context workflows via Muse Code and the Meta Model API. Succeeds Spark 1.2; max reasoning is still withheld for safety testing.

Meta Superintelligence Labs’ Muse Glimmer — Apache-2.0 ~30B dense multimodal agent model for on-device and single-GPU local agents. Sibling to closed Muse Spark; distinct from Llama 4.

Alibaba’s Qwen3 family spanning Qwen3.8-Max (2.4T MoE / 95B active; live cloud alias qwen3.8-max routes to the 0902 snapshot as of 2026-09-05), open Qwen3.8-27B (dense VLM, Apache-2.0), and Qwen3.8-Flash-Next (125B / 6B active multimodal MoE + 51B n-gram embeddings)—a Qwen4 architecture preview for cost-efficient agentic coding. Production Qwen3.8-Flash on QwenCloud adds 1M-default context and built-in tools atop the Flash-Next design.

Meta’s Llama 4 family — open-weight multimodal models designed for research and commercial use under Meta’s community license.

Google’s current Pro-class Gemini for hard reasoning and native multimodal work. Prefer API id gemini-3.1-pro-preview; Gemini 3.5 Pro remains partner-testing. Legacy gemini-2.5-pro is scheduled for shutdown Oct 16, 2026.

OpenAI’s GPT-5.6 family (Sol flagship, Terra balanced, Luna cost-efficient) for complex reasoning, coding, multimodal understanding, and agentic tool use. The gpt-5.6 API alias routes to Sol.

OpenAI’s GPT-6 Astra peak model (API id gpt-6-astra) for computer use, coding agents, professional artifacts, science, and cybersecurity-adjacent defender workflows. Staged launch 2026-09-03; GPT-5.6 Sol/Terra/Luna remain the volume and cost-routing family.

Anthropic’s Claude Opus 5 tier for complex agentic coding, enterprise work, long-context analysis, and careful instruction following. Claude Fable 5.1 sits above Opus for peak widely released capability.

Anthropic’s Claude Sonnet 5 tier — best combination of speed and intelligence for most production agents and coding, at lower cost than Opus.

Anthropic’s Claude Fable 5.1 — the most capable widely released Claude for long-horizon agents, deep reasoning, and demanding coding workflows. Mythos 5.1 is the same underlying model with relaxed cyber/life-sciences safeguards for trusted-access programs.

Anthropic’s fast, cost-efficient Claude tier for high-volume chat, classification, extraction, and sub-agent steps where latency and price matter more than peak reasoning.

Google’s current Pro-class Gemini for hard reasoning and native multimodal work. Prefer API id gemini-3.1-pro-preview; Gemini 3.5 Pro remains partner-testing. Legacy gemini-2.5-pro is scheduled for shutdown Oct 16, 2026.

Google’s Gemini 3.8 Flash workhorse — fast, token-efficient multimodal model for agentic workflows, coding, and high-throughput apps where latency and cost matter. Succeeds 3.7 Flash (GA Aug 2026); 3.7 remains supported for efficiency-first workloads.

DeepSeek’s V4 generation — deepseek-v4-pro (V4-Pro-0813 GA) and deepseek-v4-flash (Flash-0731) with 1M context, thinking effort low/high/max, native Responses API, and strong agentic coding. Experimental multimodal API: deepseek-v4-flash-vision-exp (2026-08-21).

Moonshot’s Kimi K3 — 2.8T MoE (104B active) open-weight multimodal agentic model with 1M context, native vision, and strong long-horizon coding. Weights on Hugging Face under the Kimi K3 License.

Meta Superintelligence Labs’ Muse Spark 1.3 — closed multimodal reasoning model for agentic tasks, long-horizon coding, computer use, and 1M-context workflows via Muse Code and the Meta Model API. Succeeds Spark 1.2; max reasoning is still withheld for safety testing.

Meta Superintelligence Labs’ Muse Glimmer — Apache-2.0 ~30B dense multimodal agent model for on-device and single-GPU local agents. Sibling to closed Muse Spark; distinct from Llama 4.

Alibaba’s Qwen3 family spanning Qwen3.8-Max (2.4T MoE / 95B active; live cloud alias qwen3.8-max routes to the 0902 snapshot as of 2026-09-05), open Qwen3.8-27B (dense VLM, Apache-2.0), and Qwen3.8-Flash-Next (125B / 6B active multimodal MoE + 51B n-gram embeddings)—a Qwen4 architecture preview for cost-efficient agentic coding. Production Qwen3.8-Flash on QwenCloud adds 1M-default context and built-in tools atop the Flash-Next design.

Meta’s Llama 4 family — open-weight multimodal models designed for research and commercial use under Meta’s community license.

Google’s Gemini 3.8 Flash workhorse — fast, token-efficient multimodal model for agentic workflows, coding, and high-throughput apps where latency and cost matter. Succeeds 3.7 Flash (GA Aug 2026); 3.7 remains supported for efficiency-first workloads.

Meta Superintelligence Labs’ Muse Glimmer — Apache-2.0 ~30B dense multimodal agent model for on-device and single-GPU local agents. Sibling to closed Muse Spark; distinct from Llama 4.

Mistral’s sparse Mixture-of-Experts open models (e.g. Mixtral 8x7B / 8x22B) — efficient high-quality text generation for self-hosting.

Microsoft’s Phi family of small language models — high capability per parameter for on-device, edge, and cost-sensitive deployments.